Home / 38,461.20-57,659.40-19,993.20

Finding the Fourth Proportional to 38,461.20, 57,659.40 and 19,993.20

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Solution

The fourth proportional to 38,461.20, 57,659.40 and 19,993.20 is: 29,972.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,461.20 : 57,659.40 = 19,993.20 : x
  2. Step 2: Convert to fraction form
    38,461.20/57,659.40 = 19,993.20/x
  3. Step 3: Cross multiply
    38,461.20x = 57,659.40 × 19,993.20
  4. Step 4: Simplify right side
    38,461.20x = 1,152,795,916.08
  5. Step 5: Solve for x
    x = 1,152,795,916.08/38,461.20
  6. Step 6: Final answer
    x = 29,972.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.